minor changes to Cmm left over from September 2007

[ghc-hetmet.git] / compiler / cmm / CmmUtils.hs

diff --git a/compiler/cmm/CmmUtils.hs b/compiler/cmm/CmmUtils.hs
index 6737bc6..c44cc3a 100644 (file)
--- a/compiler/cmm/CmmUtils.hs
+++ b/compiler/cmm/CmmUtils.hs
@@ -1,3 +1,10 @@
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
 -----------------------------------------------------------------------------
 --
 -- Cmm utilities.
@@ -6,13 +13,6 @@
 --
 -----------------------------------------------------------------------------
 
-{-# OPTIONS_GHC -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
---     http://hackage.haskell.org/trac/ghc/wiki/WorkingConventions#Warnings
--- for details
-
 module CmmUtils( 
        CmmStmts, noStmts, oneStmt, mkStmts, plusStmts, stmtList,
        isNopStmt,
@@ -128,6 +128,7 @@ cmmOffsetExpr e byte_off = CmmMachOp (MO_Add (cmmExprRep e)) [e, byte_off]
 -- a later optimisation step on Cmm).
 --
 cmmOffset :: CmmExpr -> Int -> CmmExpr
+cmmOffset e                 0        = e
 cmmOffset (CmmReg reg)      byte_off = cmmRegOff reg byte_off
 cmmOffset (CmmRegOff reg m) byte_off = cmmRegOff reg (m+byte_off)
 cmmOffset (CmmLit lit)      byte_off = CmmLit (cmmOffsetLit lit byte_off)
@@ -196,10 +197,10 @@ loadArgsIntoTemps :: [Unique]
                   -> CmmActuals
                   -> ([Unique], [CmmStmt], CmmActuals)
 loadArgsIntoTemps uniques [] = (uniques, [], [])
-loadArgsIntoTemps uniques ((e, hint):args) =
+loadArgsIntoTemps uniques ((CmmHinted e hint):args) =
     (uniques'',
      new_stmts ++ remaining_stmts,
-     (new_e, hint) : remaining_e)
+     (CmmHinted new_e hint) : remaining_e)
     where
       (uniques', new_stmts, new_e) = maybeAssignTemp uniques e
       (uniques'', remaining_stmts, remaining_e) =
@@ -209,4 +210,4 @@ maybeAssignTemp :: [Unique] -> CmmExpr -> ([Unique], [CmmStmt], CmmExpr)
 maybeAssignTemp uniques e
     | hasNoGlobalRegs e = (uniques, [], e)
     | otherwise         = (tail uniques, [CmmAssign local e], CmmReg local)
-    where local = CmmLocal (LocalReg (head uniques) (cmmExprRep e) KindNonPtr)
+    where local = CmmLocal (LocalReg (head uniques) (cmmExprRep e) GCKindNonPtr)